i suggest you do a search here on Calguns; the topic of gunshops (good and bad) has been covered here many times over, and i'm sure you'll find your effort rewarded with valuable information.

in my neck of the woods, there are a few shops that stand out for my liking. i appreciate the great treatment that has been extended to me at Bain and Davis Gun Shop (san gabriel) and at Alamo Jewelry & Loan (west covina).